package destr.jogl.main;

import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;

import javax.media.opengl.GL2;
import javax.media.opengl.GLAutoDrawable;

import destr.jogl.game2d.Game2DCanvas;

public class PinPongMin extends Game2DCanvas implements MouseMotionListener {
	private static final long serialVersionUID = -2012327736229675921L;
	private int mouseY = 0;
	private float clubX = 10, clubY = 0, clubW = 25, clubH = 100;
	private float ballX = 50, ballY = 50, ballW = 25, ballH = 25;
	private float ballSX = 2.5f, ballSY = 1.5f;
	
	public PinPongMin(int width, int height) {
		super(width, height);
		this.addMouseMotionListener(this);
	}

	@Override
	public void mouseDragged(MouseEvent e) {
		
	}

	@Override
	public void mouseMoved(MouseEvent e) {
		mouseY = e.getPoint().y;
	}

	private void drawRect(GL2 gl2, float x, float y, float w, float h) {
		gl2.glPushMatrix();
		gl2.glTranslatef(x, y, 0);
	    gl2.glScalef(w, h, 0f);
	    
	    gl2.glBegin(GL2.GL_QUADS);
	    	gl2.glColor3f(1.0f, 0.0f, 0.0f);
	    	gl2.glVertex3f(0.0f, 0.0f, 0.0f);
	    	
	    	gl2.glColor3f(0.0f, 1.0f, 0.0f);
	    	gl2.glVertex3f(1.0f, 0.0f, 0.0f);
	    	
	    	gl2.glColor3f(0.0f, 0.0f, 1.0f);
	    	gl2.glVertex3f(1.0f, 1.0f, 0.0f);
	    	
	    	gl2.glColor3f(1.0f, 1.0f, 0.0f);
	    	gl2.glVertex3f(0.0f, 1.0f, 0.0f);
	    gl2.glEnd();
	    gl2.glPopMatrix();
	}
	
	@Override
	public void display(GLAutoDrawable drawable) {
		clubY += (mouseY - clubY) / 25;
		ballX += ballSX;
		ballY += ballSY;
		
		if(ballX < 0.0f){
			ballX = width-ballW;
		}
		if(ballX+ballW > width){
			ballSX = -ballSX;
		}
		if(ballY < 0.0f || ballY+ballH > height){
			ballSY = -ballSY;
		}
		
		if(	ballX		< clubX + clubW &&
			ballX+ballW	> clubX &&
			ballY		< clubY + clubH &&
			ballY+ballH	> clubY
		){
			ballSX = -ballSX;
			ballX = clubX + clubW;
		}
		
		GL2 gl2 = drawable.getGL().getGL2();
	    gl2.glClear(GL2.GL_COLOR_BUFFER_BIT);
	    gl2.glLoadIdentity();
	    gl2.glTranslatef(-1f, 1f, 0);
		gl2.glScalef(2.0f/width, -2.0f/height, 0f);
	    
		drawRect(gl2, clubX, clubY, clubW, clubH);
		drawRect(gl2, ballX, ballY, ballW, ballH);
	}
}